Now I lay out the center line. This is a straight stave so I can use a string to make the center line without worrying about violating the grain. On a snakey stave I would simply do the center line by hand following the crown down the length of the stave.
Then I find the center of the stave and mark it with a line.
I decided to make the top limb 1" longer than the bottom so make the 4" handle offset by one inch.
Then 2" on either side for the fades
The handle is 1" at the ends and 1 1/4" in the middle. It widens out to 1 5/8" at the fades. I wanted to make it 1 3/4" wide but whoever bandsawed the stave left a narrow spot. You gotta work with what you've got! Luckily yew tolerates narrower designs so it should be fine.
I'm doing an American flatbow design that maintains the full width out to mid limb. so I find the middle of each limb and measure out the 1 5/8" there too. I connect the lines from the fades to mid limb. Then I do a straight taper from full width at mid limb down to 1/2" at the tips.